Re: Z -ve Limit Switch

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Steve Tompson"
<steve.tompson@...> wrote:

>
> I'm setting up Limit Switches on my Proxxon Micro Mill. I've noticed in
> wiring diagrams collected off the net that some people don't set a limit
> on -ve Z (I think that's down towards the table?). I would like to

fit an

> adjustable switch for this limit so that I can set it when I am

proposing to

> machine perilously close to the table surface.
>
> What do other people do?
>
> Thanks
> Steve Tompson
> Bearsted, England
>

I built an ultrasonic scanning tank with two gantries for various
payloads of different lengths, I really didn't want the gantries or
their loads (expensive transducers) to clash so I added a reed switch
to one of them and a telescopic magnetic pick up tool to the other,
this provided totally adjustable limiting. You could do a very
similar thing.

Graham